Pipes and tubular conduits – Distinct layers – With mechanical means to hold layers in contact
Patent
1979-02-23
1981-03-24
Bryant, III, James E.
Pipes and tubular conduits
Distinct layers
With mechanical means to hold layers in contact
138140, 138143, 405150, F16L 914
Patent
active
042574595
ABSTRACT:
The internal walls of a conduit for conveying fluid carrying marine fouling organisms is lined with a liner of anti-fouling material by inserting an expandable liner of anti-fouling material into the conduit and by expanding the liner radially outwardly into tight engagement with the internal walls with sufficient force to prevent movement of the liner with respect to the conduit upon the fluid flowing therethrough. The liner of anti-fouling material prevents the marine fouling organisms from contacting the internal walls of the conduit and thereby prevents the marine fouling organisms from adhering to or collecting on the internal walls and thereby prevents such marine fouling organisms from constricting the flow of fluid through the conduit. The liner of anti-fouling material may be comprised of a plurality of generally annularly shaped and radially expandable bands of such material which are inserted into the conduit and aligned axially and adjacent each other. A plurality of bands of radially outwardly expandable material may be inserted into the bands of anti-fouling material and positioned over the adjacent edges of adjacent bands of anti-fouling material and expanded radially outwardly to force at least the underlying portions of the bands of anti-fouling material into tight engagement with the internal walls of the conduit and with sufficient force to prevent the bands of anti-fouling material to move with respect to the conduit upon the fluid flowing therethrough.
REFERENCES:
patent: 341327 (1886-05-01), Fay
patent: 904189 (1908-11-01), Everson
patent: 2148783 (1939-02-01), Spaulding
patent: 2243273 (1941-05-01), Edwards
patent: 2386747 (1945-10-01), Ris
patent: 2790464 (1957-04-01), Stephens et al.
patent: 3169376 (1965-02-01), Cunningham
patent: 4117201 (1978-09-01), Keifert
Bryant III James E.
Revere Copper and Brass Incorporated
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